Jim, The Irish Times piece stands against your claim, "the fact that the sectarian and aggressive nature of the larger marches"

From BBC NI news site.

Chief Insp Burrows said the police would be using video footage to identify those involved in the trouble.

"The parade went very well, the return parade went very well. The violence that we saw was less than we saw in Belfast, less than we have seen in years gone by but it is still unacceptable that people are throwing petrol bombs at police, damaging their own communities and hijacking vehicles.

"I'm pleased that we made 12 arrests, I'm pleased that we got community co-operation and we have plenty of CCTV evidence

Peter Robinson and Martin McGuinness said the rioters should think of the consequences of their actions.

Mr Robinson said: "As a government we are working together to ensure that Northern Ireland prospers and grows in strength.

"It is saddening to see Ulster in the international news for all the wrong reasons.

"Those involved in Tuesday night's violence and rioting provide nothing to society. Those manipulating the violence will not win."

Mr McGuinness said: "I visited Ardoyne on Monday and met with local people, community and church leaders.

"They made it very clear to me that they did not want to see any violence in their community over the Twelfth parade.

"It is disappointing that a small number of people chose to ignore their demand and instead went about attacking the police and damaging the local community."

Police have said children as young as 10 were involved in rioting in Londonderry on Tuesday night.

Twelve people, including one woman, were arrested after petrol bombs and bricks were thrown at police.

Trouble broke out in the Bogside and Fahan Street areas, in Gobnascale and Ardmore in the Waterside, and in Strabane and Castlederg.

A 14-year old was among those arrested on suspicion of riotous behaviour.

A crate of petrol bombs was recovered in Fahan Street.

Chief Inspector, Jon Burrows, said children were involved in the rioting.

"I saw some very, very young children in the Bogside throwing stones at police. Children under 10," he said.

"That was running towards midnight. Still children under 10 years of age throwing stones at police and I have to say some adults were present and not intervening. That's very, very sad."